same thing happend to me i flashed the boot.img file via fastboot...to no avail...idk why mabey i did everything backwards? this is what happend i flashed the boot.img via fastboot the wipe cache/dalvik the flashed the rom the reboot it does the boot animation and gos as far as letting me pick my language then sitting at the welcome screen the it bootloops i gave up and restored a backup lmao

if you were able to restore a backup without anotehr boot image flash,either youre on older firmware that allows such a thing, OR your boot image didnt properly flash,as your backup would not boot with an AOSP kernel

make sure you guys wiped data/factory reset as well. it wouldnt hurt,since your having issues,to also format /system and /boot

I am pretty sure clock work mod will not work with the 2.20 firmware. You should use TWRP to flash the rom. You can download goomanager from the playstore and from there you can download TWRP. Like posted above, make sure you use fast boot for the boot.img I just download the zip file to my phone and install from TWRP. I install the boot.img using fastboot from my computer. I am a noob at flashing roms and got venom viper to work correctly.